Function SecTransformSetTransformAction 

pub unsafe extern "C-unwind" fn SecTransformSetTransformAction(
    ref: SecTransformImplementationRef,
    action: &CFString,
    new_action: SecTransformActionBlock,
) -> Option<CFRetained<CFError>>

👎Deprecated:

SecTransform is no longer supported

Available on crate features block2 and SecCustomTransform only.

Safety

• ref must be a valid pointer.
• new_action must be a valid pointer.